It was enlarged and reorganized in 1914–15 for boys, girls, and infants, but the boys remained in temporary accommodation in St. Andrew's and St. Paul's church halls until 1924, when a new building was opened for them.

[2] The school was further expanded in 2011 to facilitate an increase from four-form to six-form entry from September of that year.

[4] The name of the school comes from The BARCLAY PARK estate, on which the buildings stand; the estate was built up in the 19th century by the Barclay family of well known bankers who lived nearby at Knotts Green House.

[5] The school continues to serve a broad and diverse community - which was recognised by Ofsted as being "Outstanding" in all areas in 2016 and again in 2021.

[7] Notable attendees include the football player Paul Hayes and popular pianist Bobby Crush.